113132302121 has 4 divisors (see below), whose sum is σ = 114298614612. Its totient is φ = 111965989632.

The previous prime is 113132302111. The next prime is 113132302133. The reversal of 113132302121 is 121203231311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121203231311 = 311 ⋅389721001.

It can be written as a sum of positive squares in 2 ways, for example, as 39006250000 + 74126052121 = 197500^2 + 272261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113132302121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 113132302093 and 113132302102.

It is not an unprimeable number, because it can be changed into a prime (113132302111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583156100 + ... + 583156293.

It is an arithmetic number, because the mean of its divisors is an integer number (28574653653).

Almost surely, 2^113132302121 is an apocalyptic number.

It is an amenable number.

113132302121 is a deficient number, since it is larger than the sum of its proper divisors (1166312491).

113132302121 is an equidigital number, since it uses as much as digits as its factorization.

113132302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166312490.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113132302121 its reverse (121203231311), we get a palindrome (234335533432).

The spelling of 113132302121 in words is "one hundred thirteen billion, one hundred thirty-two million, three hundred two thousand, one hundred twenty-one".